aFe Power Magnum Force Stage I Intake for 2003-05 BMW Z4 (M54) [E85]

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An AFE  Stage 1 Cold Air Intake System for your Z4 is one of the easiest and most cost effective ways to increase your car's performance. The cold air intake replaces your restrictive factory air box which allows for an increased air flow meaning more horsepower. Not only does power increase, but many have observed an increase in MPG. The AFE intake also comes with a 16 gauge power-coated heat shield that allows your vehicle to use only colder air coming from the front of the vehicle.  Give your car a boost in power while improving fuel economy with an AFE Cold Air Intake.

AFE Intake Benefits
  • 11 horsepower increase over stock
  • 14 Ft./lbs of torque increase
  • Increased throttle response
  • Better fuel economy, usually a 1-2 MPG gain is observed
  • New look under your hood
  • Washable/ reusable filter
  • Installs in less than 60 minutes and uses factory mounting points
  • Limited lifetime warranty

Application Guide

Vehicle Part Number
2003-2006 E85/E86 Z4 2.5L (M54) 51/54-10651
2003-2006 E85/E86 Z4 3.0L (M54) 51/54-10661


About AFE Filters
AFE filters are constructed from 100% polyurethane which makes them very durable, and resistant to high temperatures and chemicals. The construction of the pleats in the filter is deeper than that of any other filter, this provides for an increased flow and prevents a greater amount of dust from reaching your engine.

  • Durable construction
  • Deep pleats for increased filtration
  • Washable/re-useable
Filter Types
AFE Pro Dry
  • Washable/reusable non-oiled cotton gauze filter
  • Maximum convenience with no re-oiling needed


AFE Pro 5R (oiled)
  • Washable/reusable oiled cotton gauze filter
  • Maximum airflow


Performance Gains
The 3.0L AFE Intake System produces gains of 11 horsepower and 14 Ft./Lbs. of torque. It also out flowed the factory by 76%. The 2.5L Intake System shows increases of 4 horsepower and 5 Ft./Lbs. of torque, and out flowed the factory intake by 71%

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